1.	Simplify 1 Simplify the following expression: $$ \left(3\times2 - \left(-2 + 5\right)\right)2(-5)2 $$ Correct Answer $$ -60$$ or -60.0000

2.	Simplify 2 Simplify the following expression: $$ \left(\frac{-2}{2} - \left(4 + -4\right)\right)2\times6\times4 $$ Correct Answer $$ -48$$ or -48.0000

3.	Fractions 1 Simplify the following expression: $$ \frac{-5}{3} + \frac{-3}{5} $$ Correct Answer $$ \frac{-34}{15}$$ or -2.2666666666666666

4.	Fractions 2 Simplify the following expression: $$ \frac{-6}{5}\frac{5}{6} $$ Correct Answer $$ -1$$ or -1.0

5.	Significant figures 1. Write the following to 2 significant figures: 0.015196829 Correct Answer 0.015 or $$1.5\times10^{-2}$$ 2. Write the following to 2 significant figures: 0.94707291 Correct Answer 0.95 or $$9.5\times10^{-1}$$

6.	Standard Form 1. Write the following in standard form to 4 significant digits: 0.0322272 Correct Answer $$3.223\times10^{-2}$$ 2. Write the following in standard form to 5 significant digits: 154.063 Correct Answer $$1.5406\times10^{2}$$

7.	Significant figures 1. Write the following in preferred standard form to 5 significant digits: 0.00138659 Correct Answer $$1.3866\times10^{-3}$$ 2. Write the following in preferred standard form to 2 significant digits: 36.3 Correct Answer $$36\times10^{0}$$

8.	Simplify 2 Simplify the following expression: $$ \frac{3 - 3 - \frac{-4}{-6}}{{\left(\frac{-6}{4}\right)}^{2}} $$ Correct Answer $$ \frac{-8}{27}$$ or -0.296296

9.	Simplify 1 Simplify the following expression: $$ \left(1 - -4\right)\left(-6 + -3\right) - {\left(-4 + 1\right)}^{2} $$ Correct Answer $$ -54$$ or -54.0000

10.	Simplify 2 Simplify the following expression: $$ \frac{2\times5\times2}{3\times2 - -3(-5)} $$ Correct Answer $$ \frac{-20}{9}$$ or -2.22222